Casio G-Shock Gravitymaster Bluetooth Carbon Core Men's Watch GR-B300-1A4

Model: GR-B300-1A4

Case / bezel material : Carbon / Bio-based resin
Bio-based resin band
Mineral Glass
Shock Resistant
Carbon Core Guard structure
Screw Lock Crown
Neobrite
200-meter water resistance
Tough Solar (Solar powered)
Mobile link (Wireless linking using Bluetooth®)  Apps : CASIO WATCHES
Bluetooth: Connects to a smartphone and automatically adjusts the time
App connectivity feature
Auto time adjustment
Easy watch setting
Approximately 300 world time cities
Flight log
Phone finder
World time
Dual time (Home City time swapping)
LED light (Super Illuminator)
Afterglow
Stopwatch
1-second stopwatch Measuring capacity: 23:59'59. Measuring modes: Elapsed time, split time
Timer
Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Daily alarm
Battery level indicator
Power Saving (hands stop to save power when the watch is left in the dark)
Full auto-calendar (to year 2099)
Date display
Day indicator
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)
±15 seconds per month accuracy (with no mobile link function)
Approx. battery operating time:
5 months on rechargeable battery (operation period with normal use without exposure to light after charge)
18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Case size (L× W× H) 59.0 X 54.7 X 15.7mm
Compatible band size 145 to 215mm
Weight 75g

Packaging: New in box with manual